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#ifndef VCSMANAGER_H
#define VCSMANAGER_H

#include "core_global.h"

#include <QtCore/QString>
#include <QtCore/QObject>

QT_BEGIN_NAMESPACE
class QDebug;
QT_END_NAMESPACE

namespace Core {

struct VCSManagerPrivate;
class IVersionControl;

/* VCSManager:
 * 1) Provides functionality for finding the IVersionControl * for a given
 *    filename (findVersionControlForDirectory). Note that the VCSManager assumes
 *    that if a IVersionControl * manages a directory, then it also manages
 *    all the files and all the subdirectories.
 *    It works by asking all IVersionControl * if they manage the file, and ask
 *    for the topmost directory it manages. This information is cached and
 *    VCSManager thus knows pretty fast which IVersionControl * is responsible.
 * 2) Passes on the changes from the version controls caused by updating or
 *    branching repositories and routes them to its signals (repositoryChanged,
 *    filesChanged). */

class CORE_EXPORT VCSManager : public QObject
{
    Q_OBJECT
    Q_DISABLE_COPY(VCSManager)
public:
    explicit VCSManager(QObject *parent = 0);
    virtual ~VCSManager();

    void extensionsInitialized();

    IVersionControl *findVersionControlForDirectory(const QString &directory,
                                                    QString *topLevelDirectory = 0);

    // Shows a confirmation dialog, whether the file should also be deleted
    // from revision control Calls sccDelete on the file. Returns false
    // if a failure occurs
    bool promptToDelete(const QString &fileName);
    bool promptToDelete(IVersionControl *versionControl, const QString &fileName);

    friend CORE_EXPORT QDebug operator<<(QDebug in, const VCSManager &);

signals:
    void repositoryChanged(const QString &repository);

private:
    VCSManagerPrivate *m_d;
};

CORE_EXPORT QDebug operator<<(QDebug in, const VCSManager &);

} // namespace Core

#endif // VCSMANAGER_H